6533b828fe1ef96bd1288c41

RESEARCH PRODUCT

<title>Nonlinear optical properties of some indandione-1,3 pyridinium betaine derivatives</title>

Vismants ZaulsGuntis LibertsOjars Neilands

subject

chemistry.chemical_compoundBetainechemistryScatteringAmphiphilePhysical chemistrySecond-harmonic generationNonlinear opticsHyperpolarizabilityMoleculeOrganic chemistryPyridinium

description

In this paper nonlinear optical properties of indandione-1,3 pyridinium betaine (IPB) molecule and its novel amphiphilic derivatives have been studied. Hyper-Rayleigh scattering (HRS) has been used as a direct and accurate tool to determine effective hyperpolarizability (beta) of IPB derivatives dissolved in chloroform. Evaluation of hyperpolarizability gives an averaged values of (beta) from 140 multiplied by 10-30 to 450 multiplied by 10-30 esu. Disordering of molecular orientation for multilayer Langmuir-Blodgett films of compound C17-IPB has been studied by SHG techniques and discussed for different film thickness. It has been observed that orientation degree of the Z-type molecular structure increases significantly with the thickness of deposited LB film.© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

https://doi.org/10.1117/12.266829